<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue'
import { ElMessage } from 'element-plus'
import { useRouter } from 'vue-router'
// 设置跳转页面的方法
const router = useRouter()
//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)
const registerData = ref({
  username: '',
  password: '',
  rePassword: '',
})
const loginData = ref({
  username: '',
  password: '',
})

// 密码校验
const passwordValidator = (rule, value, callback) => {
  if (value == '') {
    callback(new Error('请再次输入密码'))
    // 响应式数据要先.value
  } else if (registerData.value.password != value) {
    callback(new Error(`两次输入密码不同`))
  } else {
    callback()
  }
  return
}

const rules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 3, max: 16, message: '长度为3-16位', trigger: 'blur' },
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { min: 6, max: 16, message: '长度为6-16位', trigger: 'blur' },
  ],
  rePassword: [
    {
      required: true,
      validator: passwordValidator,
      message: '两次输入密码不同',
      trigger: 'blur',
    },
  ],
}
import { userRegisterService, userLoginService } from '../api/user'
import { useTokenStore } from '../stores/token'
const tokenStore = useTokenStore()
const register = async () => {
  registerData.value.username = registerData.value.username.trim()
  registerData.value.password = registerData.value.password.trim()
  registerData.value.rePassword = registerData.value.rePassword.trim()
  let res = await userRegisterService(registerData.value)
  // if (res.code === 0) {
  //     alert(res.message ? res.message : '注册成功，主人')
  // } else {
  //     alert('注册失败，主人')
  // }
  ElMessage.success(res.message ? res.message : '注册成功，主人')
}
const login = async () => {
  loginData.value.username = loginData.value.username.trim()
  loginData.value.password = loginData.value.password.trim()
  let res = await userLoginService(loginData.value)
  // if (res.code === 0) {
  //     alert(res.message ? res.message : '登录成功，主人')
  // } else {
  //     alert('登陆失败，主人')
  // }
  // alert(res.message ? res.message : '登录成功，主人')

  ElMessage.success(res.message ? res.message : '登录成功，主人')
  router.push('/')
  tokenStore.setToken(res.data)
}
</script>

<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!-- 注册表单 -->
      <el-form
        :rules="rules"
        :model="registerData"
        ref="form"
        size="large"
        autocomplete="off"
        v-if="isRegister"
        
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="registerData.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="registerData.password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="rePassword">
          <el-input
            v-model="registerData.rePassword"
            :prefix-icon="Lock"
            type="password"
            placeholder="请再次输入密码"
          ></el-input>
        </el-form-item>
        <!-- 注册按钮 -->
        <el-form-item>
          <el-button
            class="button"
            type="primary"
            auto-insert-space
            @click="register"
          >
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false">
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>
      <!-- 登录表单 -->
      <el-form
        :rules="rules"
        :model="loginData"
        ref="form"
        size="large"
        autocomplete="off"
        @keydown.enter="login"
        v-else
      >
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="loginData.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="loginData.password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <!-- 登录按钮 -->
        <el-form-item>
          <el-button
            class="button"
            type="primary"
            auto-insert-space
            @keyup.enter="login"
            @click="login"
            >登录</el-button
          >
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true">
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
  height: 100vh;
  background-color: #fff;

  .bg {
    background: url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
      url('@/assets/login_bg.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }

  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;

    .title {
      margin: 0 auto;
    }

    .button {
      width: 100%;
    }

    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
